缩写	全称	中文释义
PAIN	Puttin Asses In Neutral	中性推杆
PAIN	Pain Acquiring Instrument Neat	疼痛采集仪整洁
PAIN	Privacy Authentication Integrity Non	隐私验证完整性非
PAIN	Privacy, Authentication, Integrity, and Non-repudiation	隐私、身份验证、完整性和不可抵赖性